This collection mostly contains early papers from the Earth First! group. The materials in the collection were created from 1979 to 2012 and were mostly collected by Ron Kezar, one of the founding members, and Daniel Barron. The collection includes correspondence from Earth First! members to Ron Kezar and mailings from the organization to members. Kezar also collected the Earth First! newsletters/journals and documents about the Palo Verde court proceedings. Also included are audio and VHS tapes related to the group and Earth First! ephemera, such as bumper stickers and t-shirts.